- Uniform colors and design
- Replace duplicated icons (eg. sale / sale_management)
- Improve misleading icons (eg. POS)
- Add icons for new apps

Add SVG versions to lossless future editing and print/marketing use.

task-54681

Customer portal controller and templates contained in website_payment
module are moved to payment. This module now uses the customer portal
defined in portal module and most of website_payment code is moved
to payment.

website_payment now contain code really related to website, such as
payment acquirers configuration for website.

In order to be sure website is loaded and to allow searches in DOM require
on website was necessary. This is a partial revert of e66ba3ce1ed7c7c79dc2965237d1e37c6e02940b
that was a bit hasty.

When registering a payment token, validating it using a payment of a small amount followed by a refund
allows ensuring that the method is valid (i.e. checksumming the card number simple ensure the number
is valid but not that the card exists). This commit introduces a generic approach that must be implemented
for each acquirer that has tokenization support. This commit also introduces a generic payment token registration/usage template that can be adapted according to one's need.

payment_ogone: add support for tokens validation

Also include 2939800ed438505be9c919d4edca0ce624e6bf8e which seems to
have been forgotten during previous forward-ports

Remove logging unecessary information. While this info is not persistent or
transmited, there is no reason to log it in developper console.